example, the diagnosis of Phalaena grisea runs as follows: Die Graumotte. Ganz gelblichgrau mit vielen zerstreuten grauen und braunen Flecken. [The Grey Moth. Entirely yellowish grey with many scattered grey and brown spots.] By the mid-1770s Hufnagel had become acquainted with Freiherr S. A. von Rottemburg who lived in Klemzig near Züllichau (then Neumark, today Poland). Hufnagel gave him his collection together with detailed explanations about his publications. In 1775 and 1776 Rottemburg published a series of papers on the Hufnagel collection redescribing many species in detail. It is mainly due to this work that most of Hufnagel's taxa can be identified. Unfortunately by this time a number of species seems to have been lost from the collection, and in some cases there seems to have been a mix-up of specimens, so that not all problems of identification are solved. Although many of Hufnagel's names had priority most authors of the early 19th century preferred to ignore them or to consider them as doubtful. It was not until 1844 when Philipp Christoph Zeller published an analysis of Hufnagel's work identifying many species that the names became known to a wider circle of lepidopterists and eventually began to gain acceptance. The fate of the Hufnagel collection is unknown. Whether it was given back to Hufnagel or remained in Rottemburg's or his family's possession it has never been heard of again and most likely perished soon after Rottemburg's death. At the current state of nomenclature 87 of Hufnagel's taxa are in use as valid names for Lepidoptera species. Publications Hufnagel, J. S. [as H==n==l] (1765): Beschreibung einer seltenen, bisher unbekannten Raupe, und der daraus entstehenden Phaläne. – Berlinisches Magazin, 1(6): 648-654, 1 pl. Hufnagel, J. S. (1766a): Tabelle von den Tagevögeln der hiesigen Gegend, worauf denen Liebhabern der Insekten Beschaffenheit, Zeit, Ort und andere Umstände der Raupen und der daraus entstehenden Schmetterlinge bestimmt werden. – Berlinisches Magazin, 2(1): 54-90. Hufnagel, J. S. (1766b): Natürliche Geschichte des Changeant oder Schielervogels mit seinen Verwandlungen. – Berlinisches Magazin, 2(2): 111-131, 1 pl. Hufnagel, J. S. [as H—l] (1766c): Zwote Tabelle worinnen die Abendvögel (Sphinges Linnaei) angezeigt, und denen vornehmsten Umständen nach beschrieben werden. – Berlinisches Magazin, 2(2): 174-195. Hufnagel, J. S. [author not stated] (1766d): Dritte Tabelle von den Nachtvögeln. – Berlinisches Magazin, 2(4): 391-437. Hufnagel, J. S. [as H===l] (1766e): Gedanken über die Mittel, die schädlichen Raupen zu vertilgen. – Berlinisches Magazin, 3(1): 3-19.